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April 19, 2026
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Category/Manufacturer
Item#
Copper (Cu) Test Kit 0.5oz 15ml
Copper (Cu) is very toxic especially for invertebrates such as shrimps and crustaceans, but fish also react very sensitively to elevated copper l
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Catgeory
Testing & Controllers*
Mfg
Sera
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SER102
Chlorine (cl) Test Kit 0.5oz 15ml
For monitoring chlorine in aquarium water. For approx. 45 measurements. Chlorine is immediately removed by sera toxivec or sera pond toxivec. ser
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Catgeory
Testing & Controllers*
Mfg
Sera
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SER103
Oxygen (O2) Test Kit 0.5oz 15ml
Quick breathing at the water surface is an unmistakable sign for an oxygen deficiency. Unfortunately, it may then already be too late for acting
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Catgeory
Testing & Controllers*
Mfg
Sera
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SER104
Replacement Vials for Sera Test Kits 3 Pack
The high quality sera vials made of glass are ideally suited for carrying out the sera water tests, but also for exact dosage of care and treatme
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Catgeory
Testing & Controllers*
Mfg
Sera
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SER105
HI7032M 1382 mg/l (ppm) TDS value @ 25°, 230 ml Bottle Calibration
HI7032M
1382 mg/L (ppm) TDS Calibration Solution (230mL Bottle)
HI7032M is a premium quality 1,382 mg/L (ppm) TDS calibration solution th
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Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN120
HI70300L Electrode Storage Solution 500ml Bottle
HI70300L
pH Electrode Storage Solution (500 mL)
HI70300L is an electrode storage solution prepared with reagent grade chemicals that can
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Catgeory
Testing & Controllers*
Mfg
Hanna Instruments
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HN121
Nitrite Test Kit
Nitrite is produced in the aquarium by fish waste and uneaten fish food. Low levels of nitrite inhibit respiration and suppress the immune syste
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Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1016
High Range pH Test Kit 7.4-8.8
Fish require a specific pH level to thrive. However, pH in an aquarium can fluctuate due to fish waste, addition of tap water, and the build-up
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Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1077
Phosphate Test Kit
Phosphate can enter the aquarium through tap water, fish waste, or decaying food. As phosphate increases, so does the chance of having unsightly
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Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1078
Calcium Test Kit
Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals and crustaceans, need calcium to grow and r
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1079
Low Range pH Test Kit 6.0-7.6
Fish require a specific pH level to thrive. However, pH in an aquarium can fluctuate due to fish waste, addition of tap water, and the build-up
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1080
Wide Range pH Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
about Fritz Liquid Test Kits - Wide Range pH
250 tests
Testing the pH of your aquarium water regula
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR230
Ammonia Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
Ammonia is one of the most important parameters to monitor in aquariums because any amount can be toxic to livestock
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR231
Nitrate Test kit
High nitrate in aquarium water is associated with algae growth, a build-up of organic pollutants, and poor fish health. Use this kit to measure n
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
API Mars Fishcare
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APH1015
Nitrite Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - Nitrite
Nitrite is produced continually during the ammonia cycle by nitrifying bac
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR232
Nitrate Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - Nitrate
Nitrate is considered the non-toxic end product of the ammonia cycle. Whil
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR233
Alkalinity KH Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - Alkalinity
Carbonate hardness, or alkalinity (KH), is the measure of both carbonat
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR234
General Hardness GH Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - GH
General hardness (GH) is commonly overlooked in many aquariums, but this parame
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR235
Copper Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - Copper
Copper is commonly used in aquariums to treat external parasitic infections
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR236
Phosphate Fritz Test Kit Fresh and Saltwater
Fresh or Saltwater
About Fritz Liquid Test Kits - Phosphate
Excess nutrients can lead to poor water quality very quickly. If not con
(read more . . .)
Catgeory
Testing & Controllers*
Mfg
Fritz Aquatics
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FR237
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